Finding the Fourth Proportional to 1,740.17, 2,399.40 and 1,268.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.17 : 2,399.40 = 1,268.28 : x
2. Step 2: Convert to fraction form
   1,740.17/2,399.40 = 1,268.28/x
3. Step 3: Cross multiply
   1,740.17x = 2,399.40 × 1,268.28
4. Step 4: Simplify right side
   1,740.17x = 3,043,111.03
5. Step 5: Solve for x
   x = 3,043,111.03/1,740.17
6. Step 6: Final answer
   x = 1,748.74